Feature: Compact phono preamplifier with metal casing, portable and durable. 2xRCA input and output (L/R) 1x1/4TRS output, multiple connection options. With level and volume control knobs. Convert telephone signals to line-level signals. Ultra-low audio performance, providing excellent sound quality.Note:This is Preamplifier, not power amplifier.Pls dont place an order until you know what a preamplifier is. Special for Professional or Old customers.Description:Description:Type: Phono PreampModel: PP500Connector: RCA 1/4TRSPower Supply: DC 12V/500mASize: 10.3x5.7x3cm/4.05x2.2x1.1;Package Included:1x Preamp PP5001x Power Adapter